Thank for all your comments. I called My realtor this morning, she
went out to the house and she thought the uncentered window "wasn't
that bad" and something "she would have never noticed." I insisted
she call the builder or the builder's agent and she did and got back
with me in an hour. Apparently the builder went out to the site and
says he is "quite embarrased" that he didn't catch the error
himselft. He said he would fix it ASAP.

I am a little bothered by how my realtor felt that it wasn't a big
enough deal to warrant attention, but one I told her I didn't care
what she thought that I wanted it fixed she took care of it.

My husband and I have decided to drive to the house this weekend to
see the house and make sure no other issues are hidden.

Thanks again.